private void DetachInterfacesInternal()
{
this.activeXOleObject = null;
this.activeXOleInPlaceObject = null;
this.activexOleInPlaceActiveObject = null;
this.activeXOleControl = null;
this.DetachInterfaces();
}
private void AttachInterfacesInternal()
{
this.activeXOleObject = (UnsafeNativeMethods.IOleObject) this.ActiveXInstance;
this.activeXOleInPlaceObject = (UnsafeNativeMethods.IOleInPlaceObject) this.ActiveXInstance;
this.activexOleInPlaceActiveObject = (UnsafeNativeMethods.IOleInPlaceActiveObject) this.ActiveXInstance;
this.activeXOleControl = (UnsafeNativeMethods.IOleControl) this.ActiveXInstance;
this.AttachInterfaces(this.ActiveXInstance);
}
private void DetachInterfacesInternal() {
this.axOleObject = null;
this.axOleInPlaceObject = null;
this.axOleInPlaceActiveObject = null;
this.axOleControl = null;
//
// Lets give the inheriting classes a chance to release
// their cached interfaces of the ActiveX object.
DetachInterfaces();
}
private void AttachInterfacesInternal() {
Debug.Assert(activeXInstance != null, "The native control is null");
this.axOleObject = (UnsafeNativeMethods.IOleObject)activeXInstance;
this.axOleInPlaceObject = (UnsafeNativeMethods.IOleInPlaceObject)activeXInstance;
this.axOleInPlaceActiveObject = (UnsafeNativeMethods.IOleInPlaceActiveObject)activeXInstance;
this.axOleControl = (UnsafeNativeMethods.IOleControl)activeXInstance;
//
// Lets give the inheriting classes a chance to cast
// the ActiveX object to the appropriate interfaces.
AttachInterfaces(activeXInstance);
}
private UnsafeNativeMethods.IOleControl GetOleControl() {
if (iOleControl == null) {
Debug.Assert(instance != null, "must have the ocx");
iOleControl = (UnsafeNativeMethods.IOleControl) instance;
}
return iOleControl;
}
private void ReleaseAxControl() {
// This line is like a bit of magic...
// sometimes, we crash with it on,
// sometimes, with it off...
// Lately, I have decided to leave it on...
// (oh, yes, and the crashes seemed to disappear...)
//cpr: ComLib.Release(instance);
this.NoComponentChangeEvents++;
ContainerControl f = ContainingControl;
if (f != null) {
f.VisibleChanged -= this.onContainerVisibleChanged;
}
try {
if (instance != null) {
Marshal.FinalReleaseComObject(instance);
instance = null;
iOleInPlaceObject = null;
iOleObject = null;
iOleControl = null;
iOleInPlaceActiveObject = null;
iOleInPlaceActiveObjectExternal = null;
iPerPropertyBrowsing = null;
iCategorizeProperties = null;
iPersistStream = null;
iPersistStreamInit = null;
iPersistStorage = null;
}
axState[checkedIppb] = false;
axState[checkedCP] = false;
axState[disposed] = true;
freezeCount = 0;
axState[sinkAttached] = false;
wndprocAddr = IntPtr.Zero;
SetOcState(OC_PASSIVE);
}
finally {
this.NoComponentChangeEvents--;
}
}